Wikipedia offers a simple definition of positive pressure: A pressure within a system that is greater than the environment that surrounds that system. Put another way, in a positive air pressure system, excess air will escape through openings in the system into the surrounding environment.

Temporary heat is commonly used on construction projects in winter. Beyond the obvious benefit of keeping the work environment warm for employees and materials, it ensures proper air ventilation inside an enclosure. While heat is not required in summer, maintaining good ventilation is critical. Temporary air movers provide a safe work environment and keep your project on track during the hot, humid summer months.

View Original Article. . . It’s hard not to think about ice cream on a hot day like this! Check out this ‘cool’ TBT from 1993. . . Deemed the ‘Scooper Dome,’ a giant air-supported structure was inflated by two powerful BABFAR heaters which enabled contractors to continue concrete work right through the winter on Ben & Jerry’s manufacturing facility in St. Albans.

It’s cold. But, your construction project is humming along nicely. Before temps dropped into the single-digits, the slab was poured. The walls are going up and the windows are scheduled soon. Then, one of your temporary heating units takes a hiatus! Construction on the site’s south side is now in jeopardy. You call for repairs. Depending on how long it takes to get the heater back online, that new slab may freeze, drywall tape and joint compound may not dry, materials may become damaged, or the ground may frost—all causing construction delays and increasing costs. Fortunately, situations like this are easily avoidable. Regular preventative maintenance can minimize the risk of costly problems and ensure your construction project stays on schedule and budget.

Despite “BTU” appearing on residential and commercial heating and cooling equipment, few people understand what it means.

BTU stands for British Thermal Unit and represents the amount of energy required to raise 1 pound of water 1° F at sea level. Common heating and cooling equipment are rated in terms of how many BTUs per hour they can add to or remove from the air. The higher the BTU rating, the more heating or cooling capacity the unit has. The heating ventilation and air conditioning (HVAC) industry uses BTU to size heaters and air conditioning units for different applications.